michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:set ts=2 sw=2 sts=2 et cindent: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "WebAudioUtils.h"
michael@0: #include "AudioNodeStream.h"
michael@0: #include "AudioParamTimeline.h"
michael@0: #include "blink/HRTFDatabaseLoader.h"
michael@0: #include "speex/speex_resampler.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: namespace dom {
michael@0: 
michael@0: struct ConvertTimeToTickHelper
michael@0: {
michael@0:   AudioNodeStream* mSourceStream;
michael@0:   AudioNodeStream* mDestinationStream;
michael@0: 
michael@0:   static int64_t Convert(double aTime, void* aClosure)
michael@0:   {
michael@0:     ConvertTimeToTickHelper* This = static_cast<ConvertTimeToTickHelper*> (aClosure);
michael@0:     MOZ_ASSERT(This->mSourceStream->SampleRate() == This->mDestinationStream->SampleRate());
michael@0:     return This->mSourceStream->
michael@0:       TicksFromDestinationTime(This->mDestinationStream, aTime);
michael@0:   }
michael@0: };
michael@0: 
michael@0: void
michael@0: WebAudioUtils::ConvertAudioParamToTicks(AudioParamTimeline& aParam,
michael@0:                                         AudioNodeStream* aSource,
michael@0:                                         AudioNodeStream* aDest)
michael@0: {
michael@0:   MOZ_ASSERT(!aSource || aSource->SampleRate() == aDest->SampleRate());
michael@0:   ConvertTimeToTickHelper ctth;
michael@0:   ctth.mSourceStream = aSource;
michael@0:   ctth.mDestinationStream = aDest;
michael@0:   aParam.ConvertEventTimesToTicks(ConvertTimeToTickHelper::Convert, &ctth, aDest->SampleRate());
michael@0: }
michael@0: 
michael@0: void
michael@0: WebAudioUtils::Shutdown()
michael@0: {
michael@0:   WebCore::HRTFDatabaseLoader::shutdown();
michael@0: }
michael@0: 
michael@0: int
michael@0: WebAudioUtils::SpeexResamplerProcess(SpeexResamplerState* aResampler,
michael@0:                                      uint32_t aChannel,
michael@0:                                      const float* aIn, uint32_t* aInLen,
michael@0:                                      float* aOut, uint32_t* aOutLen)
michael@0: {
michael@0: #ifdef MOZ_SAMPLE_TYPE_S16
michael@0:   nsAutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp1;
michael@0:   nsAutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp2;
michael@0:   tmp1.SetLength(*aInLen);
michael@0:   tmp2.SetLength(*aOutLen);
michael@0:   ConvertAudioSamples(aIn, tmp1.Elements(), *aInLen);
michael@0:   int result = speex_resampler_process_int(aResampler, aChannel, tmp1.Elements(), aInLen, tmp2.Elements(), aOutLen);
michael@0:   ConvertAudioSamples(tmp2.Elements(), aOut, *aOutLen);
michael@0:   return result;
michael@0: #else
michael@0:   return speex_resampler_process_float(aResampler, aChannel, aIn, aInLen, aOut, aOutLen);
michael@0: #endif
michael@0: }
michael@0: 
michael@0: int
michael@0: WebAudioUtils::SpeexResamplerProcess(SpeexResamplerState* aResampler,
michael@0:                                      uint32_t aChannel,
michael@0:                                      const int16_t* aIn, uint32_t* aInLen,
michael@0:                                      float* aOut, uint32_t* aOutLen)
michael@0: {
michael@0:   nsAutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp;
michael@0: #ifdef MOZ_SAMPLE_TYPE_S16
michael@0:   tmp.SetLength(*aOutLen);
michael@0:   int result = speex_resampler_process_int(aResampler, aChannel, aIn, aInLen, tmp.Elements(), aOutLen);
michael@0:   ConvertAudioSamples(tmp.Elements(), aOut, *aOutLen);
michael@0:   return result;
michael@0: #else
michael@0:   tmp.SetLength(*aInLen);
michael@0:   ConvertAudioSamples(aIn, tmp.Elements(), *aInLen);
michael@0:   int result = speex_resampler_process_float(aResampler, aChannel, tmp.Elements(), aInLen, aOut, aOutLen);
michael@0:   return result;
michael@0: #endif
michael@0: }
michael@0: 
michael@0: int
michael@0: WebAudioUtils::SpeexResamplerProcess(SpeexResamplerState* aResampler,
michael@0:                                      uint32_t aChannel,
michael@0:                                      const int16_t* aIn, uint32_t* aInLen,
michael@0:                                      int16_t* aOut, uint32_t* aOutLen)
michael@0: {
michael@0: #ifdef MOZ_SAMPLE_TYPE_S16
michael@0:   return speex_resampler_process_int(aResampler, aChannel, aIn, aInLen, aOut, aOutLen);
michael@0: #else
michael@0:   nsAutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp1;
michael@0:   nsAutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp2;
michael@0:   tmp1.SetLength(*aInLen);
michael@0:   tmp2.SetLength(*aOutLen);
michael@0:   ConvertAudioSamples(aIn, tmp1.Elements(), *aInLen);
michael@0:   int result = speex_resampler_process_float(aResampler, aChannel, tmp1.Elements(), aInLen, tmp2.Elements(), aOutLen);
michael@0:   ConvertAudioSamples(tmp2.Elements(), aOut, *aOutLen);
michael@0:   return result;
michael@0: #endif
michael@0: }
michael@0: 
michael@0: }
michael@0: }